Ailing engine (Updated after teardown)

RustyRatRod said

Also......and I'm just spitballin here now. I wonder if you could attach the vacuum advance (if you have one) to manifold vacuum. That would in effect act as a boost retard. The more load the engine would see, the more it would reduce the vacuum signal to the advance can and retard the timing.

Click to expand...

This post actually got my head out of my arse and remember that with boost he may want to look into a boost referenced fuel pressure regulator.

That way as boost goes up it will add fuel pressure to help keep the fuel curve correct.

So a timing curve, boost retard on the ignition and a boost referenced regulator would make his tune up window much bigger.